Add kompose.service.expose.ingress-class-name (#1486)

Signed-off-by: Sergey Shevchenko <shevchenko@simple.life>

pkg/loader/compose/utils.go

@@ -40,6 +40,8 @@ const (
 	LabelServiceExpose = "kompose.service.expose"
 	// LabelServiceExposeTLSSecret provides the name of the TLS secret to use with the Kubernetes ingress controller
 	LabelServiceExposeTLSSecret = "kompose.service.expose.tls-secret"
+	// LabelServiceExposeIngressClassName provides the name of ingress class to use with the Kubernetes ingress controller
+	LabelServiceExposeIngressClassName = "kompose.service.expose.ingress-class-name"
 	// LabelServiceAccountName defines the service account name to provide the credential info of the pod.
 	LabelServiceAccountName = "kompose.serviceaccount-name"
 	// LabelControllerType defines the type of controller to be created

pkg/loader/compose/v3.go

@@ -658,6 +658,8 @@ func parseKomposeLabels(labels map[string]string, serviceConfig *kobject.Service
 			serviceConfig.NodePortPort = cast.ToInt32(value)
 		case LabelServiceExposeTLSSecret:
 			serviceConfig.ExposeServiceTLS = value
+		case LabelServiceExposeIngressClassName:
+			serviceConfig.ExposeServiceIngressClassName = &value
 		case LabelImagePullSecret:
 			serviceConfig.ImagePullSecret = value
 		case LabelImagePullPolicy:
@@ -671,6 +673,10 @@ func parseKomposeLabels(labels map[string]string, serviceConfig *kobject.Service
 		return errors.New("kompose.service.expose.tls-secret was specified without kompose.service.expose")
 	}
 
+	if serviceConfig.ExposeService == "" && serviceConfig.ExposeServiceIngressClassName != nil {
+		return errors.New("kompose.service.expose.ingress-class-name was specified without kompose.service.expose")
+	}
+
 	if serviceConfig.ServiceType != string(api.ServiceTypeNodePort) && serviceConfig.NodePortPort != 0 {
 		return errors.New("kompose.service.type must be nodeport when assign node port value")
 	}